create sequence s_country_id increment by 1 start with 1 maxvalue 999999999;
/
执行后:
CREATE OR REPLACE TRIGGER 你的名
BEFORE INSERT ON 你的表
REFERENCING OLD AS old NEW AS new
FOR EACH ROW
BEGIN
SELECT s_country_id.NEXTVAL INTO :new.你的列名 FROM dual;
END T_A_MemberShipID;
/
第一步:创建SEQUENCE
create sequence s_country_id increment by 1 start with 1 maxvalue 999999999;
第二步:创建一个基于该表的before insert 触发器,在触发器中使用该SEQUENCE
CREATE OR REPLACE TRIGGER 名
BEFORE INSERT ON 表
REFERENCING OLD AS old NEW AS new
FOR EACH ROW
BEGIN
SELECT s_country_id.NEXTVAL INTO :new.列名 FROM dual;
END T_A_MemberShipID;